在Ganoderma lucidum中对bHLH转录因子进行全面的基因组鉴定和功能分析
Jun Li1,2, Xuewen Zhu1,2, Yupeng Du3
1State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
Chinese herbal medicines
|January 26, 2026
概括
甘白 bHLH转录因子调节甘酸的生物合成. GlbHLH5和GlbHLH7激活关键基因,为优化药用化合物提供了洞察力.
科学领域:
- 菌类遗传学 菌类遗传学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 基本的螺旋环-螺旋环 (bHLH) 转录因子 (TFs) 对真菌发育和新陈代谢至关重要.
- 对 Ganoderma lucidum 中的 bHLH 基因及其在甘酸 (GA) 生物合成中的作用的理解有限.
研究的目的:
- 在G. lucidum. 中识别和描述bHLH基因.
- 研究这些基因在调节甘酸生物合成中的功能.
主要方法:
- 使用HMM和爆发的glbHLHs的全基因组识别.
- 遗传学分析,基因结构和表达特征.
- 酵母单杂交和双化酶报告员测定用于功能验证.
主要成果:
- 在G. lucidum中发现了11个GlbHLH成员.
- GlbHLH5和GlbHLH7表达高,与GA通路基因相关.
- GlbHLH5和GlbHLH7是关键GA生物合成酶 (兰醇合成酶,烯环氧化酶,烯合成酶) 的激活促进体.
结论:
- 虽然G. lucidum的bHLH成员比植物少,但它们的表达性很高.
- GlbHLH5和GlbHLH7在激活GA生物合成中起着重要的作用.
- 这些发现为增强G. lucidum. GA生产提供了基础.
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